Good Point. Perhaps:
id = "#{class_name}_#{(ref.respond_to?(:to_param) ? ref.to_param : ref.id )
|| 'new' }"
this is what I originally had before I remembered AR automatically defined
#to_param for you.
Also: irb tells me that "warning: Object#id will be deprecated; use
Object#object_id" when I use this on a non-AR object, so perhaps relying on
#id for non-AR objects. #object_id will always return something, so using
that as a fallback may not be a good idea.
-mattly
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